This study researched the effects of dietary metabolic energy level during later pregnancy on body weight gain, plasma reproductive hormone concentrations, yield and milk composition of colostrum of ewes, and growth of their lambs during colostrum period. Eighteen Inner Mongolia white cashmere goats in later pregnancy (91 d), weighing (39.75±2.86) kg and aged between 3 and 4 years, were randomly divided into 3 groups with six goats in each group. A basal diet was made according to NRC. metabolic energy level in different groups was 7.70 (70% of the basal diet), 11.00 (the basal diet, control group) and 14.30 MJ/kg (130% of the basal diet). The pre-experimental period was from 91 to 100 d of pregnancy, and the experimental period was from 101 d of pregnancy to day 5 after delivery. The results showed as follows:1) dietary metabolic energy of 14.30 MJ/kg could significantly increase average vale of estradiol (E2) concentration in plasma and ewes' body weight gain during later pregnancy, milk protein content on day 1 to 4 of post pregnancy and lambs' average daily gain of colostrum period (P<0.05), while had no significant impacts on progesterone (P4) and prolactin (PRL) concentrations in plasma, milk fat percentage of colostrum (except day 4 after delivery) and lambs' birth weight (P>0.05). 2) Dietary metabolic energy of 7.70 MJ/kg could decrease average values of E2, P4 and PRL concentrations in plasma, ewes' body weight gain during later pregnancy, lambs' birth weight, colostrum yield (except day 5 after delivery), milk protein content of colostrum (except day 1 and 3 after delivery), lambs' average daily gain during colostrum period, but the effects were not significant(P>0.05), and could significantly decrease milk fat content of colostrum (except day 3 after delivery) (P<0.05). Thus, dietary metabolic energy if 14.3 MJ/kg is more suitable for ewes in later pregnancy; in order to deal with lack of forage, it is viable that restricted feeding using diet with 7.70 MJ/kg metabolic energy.